不受波速影响的配电网行波故障定位方法研究  

Research on Traveling Wave Fault Location Method for Distribution NetworksNot Affected by Wave Speed

作　　者：刘柏罕 吴唯滔 LIU Bo-han;WU Wei-tao(Huaihua University,Huaihua,Hunan 418008;Key Laboratory of Intelligent Control Technology for Wuling-Mountain Ecological Agriculture in Hunan Province,Huaihua,Hunan 418000;University of Shanghai for Science and Technology,Shanghai 200093)

机构地区：[1]怀化学院,湖南怀化418008 [2]武陵山片区生态农业智能控制技术湖南省重点实验室,湖南怀化418000 [3]上海理工大学,上海200093

出　　处：《怀化学院学报》2023年第5期53-59,共7页Journal of Huaihua University

基　　金：怀化市科技项目“新型行波传感器在农村电网故障定位的设计研究”(2021R3128);湖南省教育厅科学研究项目“城市配电电缆接头故障分析及优化机理研究”(22C0492);湖南省武陵山片区重点实验室项目“农村配电线路智能监控关键技术研究”(ZNKZN2021-2)。

摘　　要：针对目前对配电网中混合线路故障定位困难,传统行波定位法误差较大的问题,提出一种不受波速影响的行波定位法,在一定的限制条件内,该方法可以实现对配电网混合线路10 m以内的故障定位精度。同时就所提出的方法分别设计了复杂配电网模型,模拟不同情况下的故障定位以及不同波速下的故障定位,验证配电网混合线路中故障定位的精确性。This paper proposes a traveling wave localization method that is not affected by wave velocity,in response to the current difficulty in locating faults in mixed lines in distribution networks and the large error of traditional traveling wave localization methods.With certain limitations,this method can achieve the accuracy of fault localization within mixed lines in distribution networks.Meanwhile,complex distribution network models were designed by the methods proposed in this paper to simulate fault localization in different situations and different wave speeds,and to verify the accuracy of fault localization in mixed transmission lines in distribution networks.

关 键 词：行波故障定位 消波速的行波定位 配电网 

分 类 号：TM77[电气工程—电力系统及自动化]